Shuttle-spindle.



, PATENTED' MAY 23', 1905. W. R. BELL. SHUTTLE SPINDLE.

APPLIOATIOH: FILED MAY 3. 19'04.

" INVENTOR:

E .S S E N w W ivo. 790,611.

, UNITED STATES Patented May 23, 1905.

PATENT OFFICE.

BERT FOERSTER; OF SLATINGTON, PENNSYLVANIA.

SHUTTLE-SPINADLAE.

' SPECIFICATION forming part of Letters Patent No. 790,611, dated May-23, 1905.

Application filed May 3, 1904- Serial No. 206,253.

To all whom it may concern.-

Be it known that I, WILLIAM R'. BELL, a subject of the King of Great Britain and Ireland, residing at Slatington, in the county of Lehigh and State of Pennsylvania, have invented certain new and useful Improvements in Sh uttle-Spindles, of which thelfollowing is a specification.

It is well known that with shuttles having solid spindles there are frequent occasions when the quills (especially in the case of pa- .per quills) are thrown off the spindle by the violent movement of the shuttle and cause.

.prevent its flying .off, means being provided for squeezing together the heel of the spindle while the cop is being applied thereon, so as to avoid the necessity of using any great force, and thereby destroying the cohesion of the threads on the cop. Most of the constructions proposed for this purpose have been so .complicated and expensive as to be commercially impracticable.

This invention provides a spindle which serves perfecly the desired purpose, which is extremely compact and simple, occupying no more space in the shuttle than an ordinary solid spindle, and which can be very cheaply manufactured.

Certain embodiments of the invention are illustrated in the accompanying drawings, in which Figure 1 is a longitudinal section of the spindle, showing its arrangement in an ordinary shuttle. Figs. 2 and 3 are respectively a planand side elevation of this spindle. Figs.

.4 and 5 are views of the inner sides of the two members of which the spindle is comelevation and a cross-section of a form of spindle designed for special purposes.

In place of the spindle of solid cast-steel or other metal previously proposed I substitute hollowsegmental shells, preferablytwoin number and half round, which maybe very cheaply and rapidly made by stam ping them from sheet metal, and I unite these shells at their points only and separate them at their heels to permit the desired squeezing together and spreading of the heel. The separation of the heels of the two members may be due to the shape of, these members or to the addition of a spring between the heels thereof and is preferably due to both causes. springiness which causes the heels to separate may besecured by making the members of spring metal or by means of the interposed spring referred to, and is preferably due to both these causes.

Referring now to the embodiment of the invention illustrated, the spindle is composed of two members A and B, (shown separately in Figs. 4: and 5,) each of which is separately stamped out of springy sheet metal into approximately the form of a half-cone. The two shells A and B are united at their ends by brazing, soldering, riveting, or otherwise. (1 represents a line of hard solder for this purpose. The shells are so shaped along their adjacent inner edges that they are separated by a considerable space D at their heels, this space being preferably tapering from the heel to the end of the joint '0. The formation of the shells by stamping them from thin sheet metal has the additional advantage of leaving the space or pocket in the ends into which the solder C may be filled, leaving only a thin line or perhaps none of the solder projecting through the edges to the outside of the spindle where it has to be smoothed off. The hollows of the shells A and B are also utilized to receive the spring, which is preferably a flat or leaf spring E, extending longitudinally of the spindle with its rear end against the spindle-shaft F to prevent longitudinal movement of the spring. With this construction Likewise the there is no need of providing a special recess for the spring or of encumbering the outside of the spindle with the spring, as has been proposed.

The heel G of the lower member B of the spindle is open at the top like the remainder of said member and is made wide enough to receive the heel H of the upper member,this latter being formed with side portions sufficiently deep to remain within the hollow heel G- of the lower member when said heels are in their separated positions, and thus to prevent any lateral movement of one member relatively to the other with the consequent strain which would occur upon the joint U. The sides of the heel G are raised above the body portion of the lower member B, as indicated in Figs. 1 and 3, in order to accommodate the heel H of the upper member above the spindle which passes approximately through the center of the height of the heel G. The rear of the heel is also closed by a wall G to stiffen the sides of the heel and to provide a bearing-face for the spring 0 in the raised position of the spindle. The lower portion of the heel G is shaped to form a shoulder P a short distance in advance of the spindle-shaft F, so as to engage the bend Q,which is suitably formed in the rear end of the spring E, and thus prevent any movement of the spring E toward the end of the spindle. This feature of construction is also most easily provided with members of stamped sheet metal, the hollow or opening of the heel being on the inner side of the member like the hollow of the body of the member.

Fig. 1 shows the shuttle when not in use.

Vhen a cop is to be applied thereto, the spindle is turned upward in the manner indicated in dotted lines in Fig. 1 until the heel of the spindle strikes a stop such, for example, as J-whereupon the heel H of the upper member A is pressed down into the heel G of the lower member until the space D between the two members is substantially closed and the heel portion of the spindle is contracted to its smallest size. The cop can then be applied to the spindle with the greatest ease. The spindle may then be lowered, whereupon the heel is released and the spring of the member A, as well'as the internal spring E, come into play to engage the interior of the quill with such force that it cannot fly off during use. Preferably the top and bottom of' the spindle are formed with teeth K, which bite into the interior surface of the quill and strengthen the hold of the spindle thereon.

There are shuttles designed to control the operation of the loom by means of members which are held in against the spindle until the thread has substantially all run off the quill. Such a shuttle, for example, is described in the patentof Brun and Brun, No. 748,922, of January 5, 1904. For use with shuttles of this type the spindle of, my present invention may be very readily adapted by forming recesses L M, Figs. 6 and 7, at one of the inner edges of each of the members A and B. During running the mechanism-controlling member will be held within the recesses L M and within the split quill N. As soon as the thread is sufficiently exhausted the members A and B of the spindle will be spread apart in the manner above explained and will spread the quill, so as to permit the escape of the mechanism-controlling member.

The heels G and H of the two halves of the spindle may be stamped up from the same piece of metal with'the spindle-sections proper, or they may be separately formed and brazed or soldered onto the rear ends of the spindlesections, being slightly varied in detail, if necessary, to adapt them to the method of manufacture used.

The substantially half-round cross-section of each of the two parts of the spindle gives them a degree of stiffness which is inmortant to perfect operation in the manner described. The engagement of the stop J with the end of the upper member A presses this member down throughout its whole length by reason of the stiffness referred to. It has been previously proposed to provide a Hat spring in a similar situation; but the pressing down of the rear end of such a spring leaves the central portion bulging, so as to oppose to a considerable extent the introduction of the quill onto the spindle. The consequence of this is to merely lessen the disadvantages of a plain spindle, but not to remove them entirely. The lifting of the spindle and the bending down of the rear end of the spring has very little effect upon the usual long and very yielding spring. However, the upper member A of the present spindle preserves its stili' straight form, and the bending down of its rear end bends the entire member at its weakest point W namely, the end 0. Consequently the quill may be inserted without the least resistance, and upon the release of the spring by the lowering of the spindle the en ti re member A moves outward, and a very firm grip upon the inside of the quill is secured.

'lhough I have described with great particularity of detail certain complete embodiments of the'inventi'on, yet it is not to be understood therefrom that the invention is limited to the specific embodiments disclosed.

Various modifications thereof in detail and in the arrangement and combination of the parts may be made by those skilled in the art without departure from the invention.

WVhat I claim is- 1. A shuttle-spindle composed of hollow segmental. shells formed of separate pieces of sheet metal of-substantially half-round crosssection united at their points and separated at their heels and adapted to be sprung together at their heels to permit the application of a quill thereon.

2. A shuttle-spindle composed of two hol- I low shells A and'B each forming approximately a half-cone, formed of separate pieces of springy sheet metal united at their points and shaped 'to normally separate at their heels and to permit being sprung together to permit the application of a quill thereon.

3. A shuttle-spindle composed of hollow substantially half-round shells formed of separate pieces of sheet metal united at their points, a spring located in the hollows of said shells tending to separate their heels and permitting said heels to be pressed together for the application of a quill thereon.

4. A shuttle-spindle composed of two hollow shells A and B each forming approximately a half-cone, formed of separate pieces of springy sheet metal united at their points, and a spring E located in the hollows of said shells and tending also to separate said heels and permitting said heels to be pressed together for the application of a quill thereon.

5. A. shuttle-spindle comprising a lower memberBand anupper member A, said members being substantially half round shells formed of separate pieces of sheet metal united at their points and separated at their heels, the heelGof said lower member being open at the top and'the heel H of said upper member fitting within the heel-of the lower member.

6. A shuttle-spindle composed of two hol low substantially half-round shells formed of separate pieces of sheet metal united at their points and separated at theirheels and adapted to spring together at their heels to permit the application of a quill thereon, said shells being recessed at L and M near their heels to accommodate a mechanism-controlling member under. the quill.

7. A shuttle-spindle composed of two hollow shells A and B each forming approximately a half-cone, formed of separate pieces of springy sheet metal united at their points, and a spring E located in the hollows of said shells and tending also to separate said heels and permitting said heels to be pressed together for the application of a quill thereon, the heel of the shell B being formed with a shoulder P adjacent to the spindle-shaft, and the spring E being formed with a bend Q by which it is held between the shoulderP and the spindle-shaft.

- In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

. WILLIAM R. BELL. Witnesses:.

H. W. HANKEE,

GEORGE SGHEIRER. 

